No. 534: Periodic Table: 46 Palladium

T-Rex: T-Rex presents The Periodic Table:
T-Rex: 46 PALLADIUM
T-Rex: A rare silvery metal, over 50% of the global production of which is used in automobile catalytic converters to reduce pollution.
Utahraptor: That sounds very much like rhodium.
T-Rex: Yeah, we're in the boring bit where all the elements are basically the same. The same guy even discovered them[1]. Seriously.
T-Rex: At least... he SAID they were two different elements...
T-Rex: Holy Moley!!